Vacuum cleaner



FIG. 1 is a top perspective view of a vacuum cleaner of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image thereof; and,

FIG. 6 is a rear view thereof. 

We claim the ornamental design for a vacuum cleaner, as shown and described. 